MZ32移动模架造桥机工艺设计

分析MZ32移动模架造桥机制造的工艺难点和控制关键点 ,确定相应的工艺对策 ,制定相关的工艺文件 ,设计关键工序的加工工装 ,有针对性地进行施工管理。     

复杂条件下轻轨预制箱梁架设关键施工技术

南京至高淳城际轨道DS7-TA04标段内高架预制钢筋混凝土箱梁架设施工存在小半径曲线、大纵坡、变跨度以及单双线交替等难点,常规的架桥机及架桥施工方法已经无法满足工程施工要求。为此,对常规JQXD320 t-31 m单导梁架桥机进行系统改造,同时调整施工方法,研究应用大纵坡、小半径曲线预制箱梁运输及架设关键施工技术和轨道预制箱梁单双线交替架设关键施工技术,成功解决架梁施工中存在的难点问题,确保工程的顺利完成。     

云南小湾大桥主拱钢箱加工与制造

因地制宜、结合实际情况、制定钢箱提篮拱主拱钢箱加工的步骤、施工工艺和方法;通过设计和修建钢箱提篮拱,主拱钢箱的制造、焊接、拼装、运输和工地安装、焊接等工序,找出最合理的钢箱施工方案,为日后在设计类似结构时提供一些可借鉴的经验。     

Fast affine projection algorithm for adaptive noise canceling and its application on the fetal electrocardiogram extraction

Aimed at the problem of adaptive noise canceling (ANC), three implementary algorithms, which are least mean square (LMS) algorithm, recursive least square (RLS) algorithm and fast affine projection (FAP) algorithm, have been researched. The simulations were made for the performance of these algorithms. The extraction of fetal electrocardiogram (FECG) is applied to compare the application effect of the above algorithms. The proposed FAP algorithm has obvious advantages in computational complexity, convergence speed and steadystate error.